The number of echoes combined into a single image or image set in multiple echo imaging sequences or echo-train techniques such as rapid acquisition with relaxation enhancement (RARE), fast-spin echo (FSE), and turbo spin-echo (TSE). In RARE imaging, the ETL typically equals the acceleration factor.
As for tooth pain, it is caused by a reaction of the nerves inside a tooth's pulp chamber with the severity dependent upon the type and degree of the stimulus. What follows are some examples of symptoms you may be feeling and their possible causes.
If your teeth often hurt after eating warm or hot foods, it could be due to teeth sensitivity. However, this doesnât develop overnight. Bad oral hygiene, wear and tear of the enamel and aesthetic procedures could be the cause for the same. Here is all that you need to know about tooth sensitivity.